Your comment is right on target, Burt.

The observation gives us more reason to think that the detection of gravitational waves is likely soon, but until we have an unambiguous test case that either detects or fails to detect expected gravitational waves, doubters can still make arguments that fit the data.

I also want to make clear that my use of the word "doubter" is not intended to have any positive or negative connotation. It just means that conventional theories, especially general relativity, predict that gravitational waves exist, so the doubters are challenging the convention--a perfectly reasonable and necessary activity in the context of scientific progress.

Fred Bortz -- Science and technology books for young readers (www.fredbortz.com) and Science book reviews (www.scienceshelf.com)